CK Sin / Mbed 2 deprecated Ethernetwebsocket

Ethernetwebsoc

Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

mbed-rtos/rtx/LPC1768/ARM/HAL_CM3.c@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /*----------------------------------------------------------------------------
GordonSin 0:0ed2a7c7190c 2 * RL-ARM - RTX
GordonSin 0:0ed2a7c7190c 3 *----------------------------------------------------------------------------
GordonSin 0:0ed2a7c7190c 4 * Name: HAL_CM3.C
GordonSin 0:0ed2a7c7190c 5 * Purpose: Hardware Abstraction Layer for Cortex-M3
GordonSin 0:0ed2a7c7190c 6 * Rev.: V4.50
GordonSin 0:0ed2a7c7190c 7 *----------------------------------------------------------------------------
GordonSin 0:0ed2a7c7190c 8 *
GordonSin 0:0ed2a7c7190c 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
GordonSin 0:0ed2a7c7190c 10 * All rights reserved.
GordonSin 0:0ed2a7c7190c 11 * Redistribution and use in source and binary forms, with or without
GordonSin 0:0ed2a7c7190c 12 * modification, are permitted provided that the following conditions are met:
GordonSin 0:0ed2a7c7190c 13 * - Redistributions of source code must retain the above copyright
GordonSin 0:0ed2a7c7190c 14 * notice, this list of conditions and the following disclaimer.
GordonSin 0:0ed2a7c7190c 15 * - Redistributions in binary form must reproduce the above copyright
GordonSin 0:0ed2a7c7190c 16 * notice, this list of conditions and the following disclaimer in the
GordonSin 0:0ed2a7c7190c 17 * documentation and/or other materials provided with the distribution.
GordonSin 0:0ed2a7c7190c 18 * - Neither the name of ARM nor the names of its contributors may be used
GordonSin 0:0ed2a7c7190c 19 * to endorse or promote products derived from this software without
GordonSin 0:0ed2a7c7190c 20 * specific prior written permission.
GordonSin 0:0ed2a7c7190c 21 *
GordonSin 0:0ed2a7c7190c 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
GordonSin 0:0ed2a7c7190c 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
GordonSin 0:0ed2a7c7190c 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
GordonSin 0:0ed2a7c7190c 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
GordonSin 0:0ed2a7c7190c 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
GordonSin 0:0ed2a7c7190c 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
GordonSin 0:0ed2a7c7190c 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
GordonSin 0:0ed2a7c7190c 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
GordonSin 0:0ed2a7c7190c 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
GordonSin 0:0ed2a7c7190c 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
GordonSin 0:0ed2a7c7190c 32 * POSSIBILITY OF SUCH DAMAGE.
GordonSin 0:0ed2a7c7190c 33 *---------------------------------------------------------------------------*/
GordonSin 0:0ed2a7c7190c 34
GordonSin 0:0ed2a7c7190c 35 #include "rt_TypeDef.h"
GordonSin 0:0ed2a7c7190c 36 #include "RTX_Config.h"
GordonSin 0:0ed2a7c7190c 37 #include "rt_System.h"
GordonSin 0:0ed2a7c7190c 38 #include "rt_HAL_CM.h"
GordonSin 0:0ed2a7c7190c 39 #include "rt_Task.h"
GordonSin 0:0ed2a7c7190c 40 #include "rt_MemBox.h"
GordonSin 0:0ed2a7c7190c 41
GordonSin 0:0ed2a7c7190c 42
GordonSin 0:0ed2a7c7190c 43 /*----------------------------------------------------------------------------
GordonSin 0:0ed2a7c7190c 44 * Functions
GordonSin 0:0ed2a7c7190c 45 *---------------------------------------------------------------------------*/
GordonSin 0:0ed2a7c7190c 46
GordonSin 0:0ed2a7c7190c 47
GordonSin 0:0ed2a7c7190c 48 /*--------------------------- rt_set_PSP ------------------------------------*/
GordonSin 0:0ed2a7c7190c 49
GordonSin 0:0ed2a7c7190c 50 __asm void rt_set_PSP (U32 stack) {
GordonSin 0:0ed2a7c7190c 51 MSR PSP,R0
GordonSin 0:0ed2a7c7190c 52 BX LR
GordonSin 0:0ed2a7c7190c 53 }
GordonSin 0:0ed2a7c7190c 54
GordonSin 0:0ed2a7c7190c 55
GordonSin 0:0ed2a7c7190c 56 /*--------------------------- rt_get_PSP ------------------------------------*/
GordonSin 0:0ed2a7c7190c 57
GordonSin 0:0ed2a7c7190c 58 __asm U32 rt_get_PSP (void) {
GordonSin 0:0ed2a7c7190c 59 MRS R0,PSP
GordonSin 0:0ed2a7c7190c 60 BX LR
GordonSin 0:0ed2a7c7190c 61 }
GordonSin 0:0ed2a7c7190c 62
GordonSin 0:0ed2a7c7190c 63
GordonSin 0:0ed2a7c7190c 64 /*--------------------------- os_set_env ------------------------------------*/
GordonSin 0:0ed2a7c7190c 65
GordonSin 0:0ed2a7c7190c 66 __asm void os_set_env (void) {
GordonSin 0:0ed2a7c7190c 67 /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
GordonSin 0:0ed2a7c7190c 68 MOV R0,SP ; PSP = MSP
GordonSin 0:0ed2a7c7190c 69 MSR PSP,R0
GordonSin 0:0ed2a7c7190c 70 LDR R0,=__cpp(&os_flags)
GordonSin 0:0ed2a7c7190c 71 LDRB R0,[R0]
GordonSin 0:0ed2a7c7190c 72 LSLS R0,#31
GordonSin 0:0ed2a7c7190c 73 MOVNE R0,#0x02 ; Privileged Thread mode, use PSP
GordonSin 0:0ed2a7c7190c 74 MOVEQ R0,#0x03 ; Unprivileged Thread mode, use PSP
GordonSin 0:0ed2a7c7190c 75 MSR CONTROL,R0
GordonSin 0:0ed2a7c7190c 76 BX LR
GordonSin 0:0ed2a7c7190c 77
GordonSin 0:0ed2a7c7190c 78 ALIGN
GordonSin 0:0ed2a7c7190c 79 }
GordonSin 0:0ed2a7c7190c 80
GordonSin 0:0ed2a7c7190c 81
GordonSin 0:0ed2a7c7190c 82 /*--------------------------- _alloc_box ------------------------------------*/
GordonSin 0:0ed2a7c7190c 83
GordonSin 0:0ed2a7c7190c 84 __asm void *_alloc_box (void *box_mem) {
GordonSin 0:0ed2a7c7190c 85 /* Function wrapper for Unprivileged/Privileged mode. */
GordonSin 0:0ed2a7c7190c 86 LDR R12,=__cpp(rt_alloc_box)
GordonSin 0:0ed2a7c7190c 87 MRS R3,IPSR
GordonSin 0:0ed2a7c7190c 88 LSLS R3,#24
GordonSin 0:0ed2a7c7190c 89 BXNE R12
GordonSin 0:0ed2a7c7190c 90 MRS R3,CONTROL
GordonSin 0:0ed2a7c7190c 91 LSLS R3,#31
GordonSin 0:0ed2a7c7190c 92 BXEQ R12
GordonSin 0:0ed2a7c7190c 93 SVC 0
GordonSin 0:0ed2a7c7190c 94 BX LR
GordonSin 0:0ed2a7c7190c 95
GordonSin 0:0ed2a7c7190c 96 ALIGN
GordonSin 0:0ed2a7c7190c 97 }
GordonSin 0:0ed2a7c7190c 98
GordonSin 0:0ed2a7c7190c 99
GordonSin 0:0ed2a7c7190c 100 /*--------------------------- _free_box -------------------------------------*/
GordonSin 0:0ed2a7c7190c 101
GordonSin 0:0ed2a7c7190c 102 __asm int _free_box (void *box_mem, void *box) {
GordonSin 0:0ed2a7c7190c 103 /* Function wrapper for Unprivileged/Privileged mode. */
GordonSin 0:0ed2a7c7190c 104 LDR R12,=__cpp(rt_free_box)
GordonSin 0:0ed2a7c7190c 105 MRS R3,IPSR
GordonSin 0:0ed2a7c7190c 106 LSLS R3,#24
GordonSin 0:0ed2a7c7190c 107 BXNE R12
GordonSin 0:0ed2a7c7190c 108 MRS R3,CONTROL
GordonSin 0:0ed2a7c7190c 109 LSLS R3,#31
GordonSin 0:0ed2a7c7190c 110 BXEQ R12
GordonSin 0:0ed2a7c7190c 111 SVC 0
GordonSin 0:0ed2a7c7190c 112 BX LR
GordonSin 0:0ed2a7c7190c 113
GordonSin 0:0ed2a7c7190c 114 ALIGN
GordonSin 0:0ed2a7c7190c 115 }
GordonSin 0:0ed2a7c7190c 116
GordonSin 0:0ed2a7c7190c 117
GordonSin 0:0ed2a7c7190c 118 /*-------------------------- SVC_Handler ------------------------------------*/
GordonSin 0:0ed2a7c7190c 119
GordonSin 0:0ed2a7c7190c 120 __asm void SVC_Handler (void) {
GordonSin 0:0ed2a7c7190c 121 PRESERVE8
GordonSin 0:0ed2a7c7190c 122
GordonSin 0:0ed2a7c7190c 123 IMPORT SVC_Count
GordonSin 0:0ed2a7c7190c 124 IMPORT SVC_Table
GordonSin 0:0ed2a7c7190c 125 IMPORT rt_stk_check
GordonSin 0:0ed2a7c7190c 126
GordonSin 0:0ed2a7c7190c 127 MRS R0,PSP ; Read PSP
GordonSin 0:0ed2a7c7190c 128 LDR R1,[R0,#24] ; Read Saved PC from Stack
GordonSin 0:0ed2a7c7190c 129 LDRB R1,[R1,#-2] ; Load SVC Number
GordonSin 0:0ed2a7c7190c 130 CBNZ R1,SVC_User
GordonSin 0:0ed2a7c7190c 131
GordonSin 0:0ed2a7c7190c 132 LDM R0,{R0-R3,R12} ; Read R0-R3,R12 from stack
GordonSin 0:0ed2a7c7190c 133 BLX R12 ; Call SVC Function
GordonSin 0:0ed2a7c7190c 134
GordonSin 0:0ed2a7c7190c 135 MRS R12,PSP ; Read PSP
GordonSin 0:0ed2a7c7190c 136 STM R12,{R0-R2} ; Store return values
GordonSin 0:0ed2a7c7190c 137
GordonSin 0:0ed2a7c7190c 138 LDR R3,=__cpp(&os_tsk)
GordonSin 0:0ed2a7c7190c 139 LDM R3,{R1,R2} ; os_tsk.run, os_tsk.new
GordonSin 0:0ed2a7c7190c 140 CMP R1,R2
GordonSin 0:0ed2a7c7190c 141 BEQ SVC_Exit ; no task switch
GordonSin 0:0ed2a7c7190c 142
GordonSin 0:0ed2a7c7190c 143 CBZ R1,SVC_Next ; Runtask deleted?
GordonSin 0:0ed2a7c7190c 144 STMDB R12!,{R4-R11} ; Save Old context
GordonSin 0:0ed2a7c7190c 145 STR R12,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
GordonSin 0:0ed2a7c7190c 146
GordonSin 0:0ed2a7c7190c 147 PUSH {R2,R3}
GordonSin 0:0ed2a7c7190c 148 BL rt_stk_check ; Check for Stack overflow
GordonSin 0:0ed2a7c7190c 149 POP {R2,R3}
GordonSin 0:0ed2a7c7190c 150
GordonSin 0:0ed2a7c7190c 151 SVC_Next
GordonSin 0:0ed2a7c7190c 152 STR R2,[R3] ; os_tsk.run = os_tsk.new
GordonSin 0:0ed2a7c7190c 153
GordonSin 0:0ed2a7c7190c 154 LDR R12,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
GordonSin 0:0ed2a7c7190c 155 LDMIA R12!,{R4-R11} ; Restore New Context
GordonSin 0:0ed2a7c7190c 156 MSR PSP,R12 ; Write PSP
GordonSin 0:0ed2a7c7190c 157
GordonSin 0:0ed2a7c7190c 158 SVC_Exit
GordonSin 0:0ed2a7c7190c 159 MVN LR,#:NOT:0xFFFFFFFD ; set EXC_RETURN value
GordonSin 0:0ed2a7c7190c 160 BX LR
GordonSin 0:0ed2a7c7190c 161
GordonSin 0:0ed2a7c7190c 162 /*------------------- User SVC ------------------------------*/
GordonSin 0:0ed2a7c7190c 163
GordonSin 0:0ed2a7c7190c 164 SVC_User
GordonSin 0:0ed2a7c7190c 165 PUSH {R4,LR} ; Save Registers
GordonSin 0:0ed2a7c7190c 166 LDR R2,=SVC_Count
GordonSin 0:0ed2a7c7190c 167 LDR R2,[R2]
GordonSin 0:0ed2a7c7190c 168 CMP R1,R2
GordonSin 0:0ed2a7c7190c 169 BHI SVC_Done ; Overflow
GordonSin 0:0ed2a7c7190c 170
GordonSin 0:0ed2a7c7190c 171 LDR R4,=SVC_Table-4
GordonSin 0:0ed2a7c7190c 172 LDR R4,[R4,R1,LSL #2] ; Load SVC Function Address
GordonSin 0:0ed2a7c7190c 173
GordonSin 0:0ed2a7c7190c 174 LDM R0,{R0-R3,R12} ; Read R0-R3,R12 from stack
GordonSin 0:0ed2a7c7190c 175 BLX R4 ; Call SVC Function
GordonSin 0:0ed2a7c7190c 176
GordonSin 0:0ed2a7c7190c 177 MRS R12,PSP
GordonSin 0:0ed2a7c7190c 178 STM R12,{R0-R3} ; Function return values
GordonSin 0:0ed2a7c7190c 179 SVC_Done
GordonSin 0:0ed2a7c7190c 180 POP {R4,PC} ; RETI
GordonSin 0:0ed2a7c7190c 181
GordonSin 0:0ed2a7c7190c 182 ALIGN
GordonSin 0:0ed2a7c7190c 183 }
GordonSin 0:0ed2a7c7190c 184
GordonSin 0:0ed2a7c7190c 185
GordonSin 0:0ed2a7c7190c 186 /*-------------------------- PendSV_Handler ---------------------------------*/
GordonSin 0:0ed2a7c7190c 187
GordonSin 0:0ed2a7c7190c 188 __asm void PendSV_Handler (void) {
GordonSin 0:0ed2a7c7190c 189 PRESERVE8
GordonSin 0:0ed2a7c7190c 190
GordonSin 0:0ed2a7c7190c 191 BL __cpp(rt_pop_req)
GordonSin 0:0ed2a7c7190c 192
GordonSin 0:0ed2a7c7190c 193 Sys_Switch
GordonSin 0:0ed2a7c7190c 194 LDR R3,=__cpp(&os_tsk)
GordonSin 0:0ed2a7c7190c 195 LDM R3,{R1,R2} ; os_tsk.run, os_tsk.new
GordonSin 0:0ed2a7c7190c 196 CMP R1,R2
GordonSin 0:0ed2a7c7190c 197 BEQ Sys_Exit
GordonSin 0:0ed2a7c7190c 198
GordonSin 0:0ed2a7c7190c 199 MRS R12,PSP ; Read PSP
GordonSin 0:0ed2a7c7190c 200 STMDB R12!,{R4-R11} ; Save Old context
GordonSin 0:0ed2a7c7190c 201 STR R12,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
GordonSin 0:0ed2a7c7190c 202
GordonSin 0:0ed2a7c7190c 203 PUSH {R2,R3}
GordonSin 0:0ed2a7c7190c 204 BL rt_stk_check ; Check for Stack overflow
GordonSin 0:0ed2a7c7190c 205 POP {R2,R3}
GordonSin 0:0ed2a7c7190c 206
GordonSin 0:0ed2a7c7190c 207 STR R2,[R3] ; os_tsk.run = os_tsk.new
GordonSin 0:0ed2a7c7190c 208
GordonSin 0:0ed2a7c7190c 209 LDR R12,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
GordonSin 0:0ed2a7c7190c 210 LDMIA R12!,{R4-R11} ; Restore New Context
GordonSin 0:0ed2a7c7190c 211 MSR PSP,R12 ; Write PSP
GordonSin 0:0ed2a7c7190c 212
GordonSin 0:0ed2a7c7190c 213 Sys_Exit
GordonSin 0:0ed2a7c7190c 214 MVN LR,#:NOT:0xFFFFFFFD ; set EXC_RETURN value
GordonSin 0:0ed2a7c7190c 215 BX LR ; Return to Thread Mode
GordonSin 0:0ed2a7c7190c 216
GordonSin 0:0ed2a7c7190c 217 ALIGN
GordonSin 0:0ed2a7c7190c 218 }
GordonSin 0:0ed2a7c7190c 219
GordonSin 0:0ed2a7c7190c 220
GordonSin 0:0ed2a7c7190c 221 /*-------------------------- SysTick_Handler --------------------------------*/
GordonSin 0:0ed2a7c7190c 222
GordonSin 0:0ed2a7c7190c 223 __asm void SysTick_Handler (void) {
GordonSin 0:0ed2a7c7190c 224 PRESERVE8
GordonSin 0:0ed2a7c7190c 225
GordonSin 0:0ed2a7c7190c 226 BL __cpp(rt_systick)
GordonSin 0:0ed2a7c7190c 227 B Sys_Switch
GordonSin 0:0ed2a7c7190c 228
GordonSin 0:0ed2a7c7190c 229 ALIGN
GordonSin 0:0ed2a7c7190c 230 }
GordonSin 0:0ed2a7c7190c 231
GordonSin 0:0ed2a7c7190c 232
GordonSin 0:0ed2a7c7190c 233 /*-------------------------- OS_Tick_Handler --------------------------------*/
GordonSin 0:0ed2a7c7190c 234
GordonSin 0:0ed2a7c7190c 235 __asm void OS_Tick_Handler (void) {
GordonSin 0:0ed2a7c7190c 236 PRESERVE8
GordonSin 0:0ed2a7c7190c 237
GordonSin 0:0ed2a7c7190c 238 BL __cpp(os_tick_irqack)
GordonSin 0:0ed2a7c7190c 239 BL __cpp(rt_systick)
GordonSin 0:0ed2a7c7190c 240 B Sys_Switch
GordonSin 0:0ed2a7c7190c 241
GordonSin 0:0ed2a7c7190c 242 ALIGN
GordonSin 0:0ed2a7c7190c 243 }
GordonSin 0:0ed2a7c7190c 244
GordonSin 0:0ed2a7c7190c 245
GordonSin 0:0ed2a7c7190c 246 /*----------------------------------------------------------------------------
GordonSin 0:0ed2a7c7190c 247 * end of file
GordonSin 0:0ed2a7c7190c 248 *---------------------------------------------------------------------------*/
GordonSin 0:0ed2a7c7190c 249